version s

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Use ctypes to improve Python execution speed _python

Objective cTYPES is a Python external library of functions. It provides a C-compatible data type and allows calls to functions in the dynamic-link library/shared library. It can wrap these libraries up for use in Python. The introduction of the C

Triangle for GLSL color conversion (C language)

#include #include #include #include readtext.h#ifdef _APPLE_#include #else#define FREEGLUT_STATIC#include #endif#pragma comment(lib, readtext.lib)GLuint vShader, fShader, programHandle;GLint vaoHandle,

How to operate MySQL in a Python Program

This article mainly introduces the basic methods for operating MySQL in a Python program, mainly using MYSQLdbmodule. If you need it, refer Python for Mysql Recently I have been studying python. This scripting language is undoubtedly associated

Android Platform Compile IW

Don't know how to compile IW, so just search the web for blogs http://blog.csdn.net/jksl007/article/details/16862435First of all, IW relies on the LIBNL library, and Android itself does not carry the LIBNL library, so it is necessary to transplant

Overview of image enlargement Methods

In the field of film and television production, the problem of enlarging low-resolution images to high-resolution images is often involved, and sometimes the issue of adjusting non-square pixels to square pixels is also involved. This chapter

[QT] qdatastream class reference

The qdatastream class serializes binary data to qiodevice. # Include InstituteList of member functions.Public Member Qdatastream() Qdatastream(Qiodevice * D) Qdatastream(Qbytearray A, int Mode) Virtual~ Qdatastream() Qiodevice *Device() Const

InfluxDB server startup process

InfluxDB server startup process Operating System: CentOS7.3.1611 _ x64 Go language version: 1.8.3 linux/amd64 InfluxDB version: 1.1.0 Source code path: github.com/influxdata/influxdb/#/influxd Program entry (main. go ): Func main (){Rand. Seed (time.

Python Gets the version number of ET and Excel

Copy the Code code as follows: #-*-Coding:utf-8-*-From win32com.client import Dispatchif __name__ = = ' __main__ ':App = Dispatch ("ET. Application ")# minor Version numberprint ' app. build:%s '% App. Build# Large Version numberprint ' app.

File I/O and system programming

File IO and system programming This article is the author read Tlpi (the Linux Programer interface Summary), in order to highlight the focus, avoid a cut, I will not too much to introduce the basic concepts and usage, I will focus on the

OpenGL------Version History

Until today, there are nine versions of official OpenGL. (1.0, 1.1, 1.2, 1.2.1, 1.3, 1.4, 1.5, 2.0, 2.1)The launch of each OpenGL release adds some new features that were popular or badly needed at the time. at the same time, OpenGL is backwards

The "DDA" algorithm for drawing line algorithm in graphic science

The DDA algorithm draws a straight line, its theoretical basis: if M represents a straight line slope, then there is the slope m = (y2-y1)/(X2-X1),∴m =δy/δx, thus having any increment Δx for the given x along the line, calculates the increment of

Python optimization techniques: Using ctypes to improve execution speed, pythonctypes

Python optimization techniques: Using ctypes to improve execution speed, pythonctypes First, I would like to share with you a small pitfall when using python's ctypes to call the c library. This issue is caused by a C function. The returned value is

Write the first program with the coloring Tool

Write the first program with the coloring Tool We use coloring to draw a triangle. #include //#include #include #include #include #include #include #include

Aircrack-ng tutorial

Aircrack-ng tools are also available in Windows, but I can't capture packets in Windows, so I can only discard Windows from Linux, in addition, the APS scanned in Windows are much less than those in Linux. In fact, Windows does not fully support TCP/

Cordova Cross-platform app version upgrade

Use Cordova+ionic to develop a good project, followed by a package release, before that, you have to do a version of the upgrade of the small features.First of all, there is no natural configuration in the root directory of our project: CONFIG.。

Use Happybase to access hbase there is a broken pipe problem---Two "big" bug

SourceBroken pipe error occurs when reading and writing data to HBase using happybase through the thrift interface. Troubleshooting steps:1. View HBase logs:Java HotSpot (TM) 64-bit Server VM warning:using incremental CMS is deprecated and would

setup.py some unknown tricks in Python

http://python.jobbole.com/80912/Before I start, I want to make it clear that I'm going to explain some of the "tricks". They are not "best practices", at least in one case it is undesirable.Speaking of undesirable practices, I will write a "setup.py

Python Gets the version number of ET and Excel _python

Copy Code code as follows: #-*-Coding:utf-8-*- From win32com.client import Dispatch if __name__ = = ' __main__ ': App = Dispatch ("et"). Application ") # Small version number print ' app. build:%s '% App. Build # Large Version number

Java SE 6 scripting engine makes the program powerful

Now that Java SE 5 has been released, Java SE 6 will be released next year. Java SE 6 is much better than the Java SE5, it is more powerful and designed for Vista, which means that Java SE 6 will be the best choice for Vista. and the largest number

Android version detection Android program version detection and update implementation Introduction _android

Do a website of the Android client, the user installed to their mobile phone, if I have a new version how to do? To have a version update feature. Original version detection is best done automatically. But if every time you open the program, you

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